We are so excited for the upcoming Cloudforce San Francisco event that we decided to put together this list of the top companies attending this year's extravaganza. Ranked in no particular order, the companies that made the list are frontrunners out of 40+ exhibiting participants. When building the list we considered, financial backing, customer growth, product quality, among other things.

Read our summary of day 3 at Dreamforce 2011 here!

One word: impressive.